refactor(@angular/cli): update mcp if example to use signals #1788

Job	Run time
build	12s
lint	2m 14s
e2e_windows (windows-2025, 22, npm, 0)	1m 6s
e2e_windows (windows-2025, 22, npm, 2)	30s
e2e_windows (windows-2025, 22, npm, 1)	57s
e2e_windows (windows-2025, 22, npm, 4)	47s
e2e_windows (windows-2025, 22, npm, 5)	45s
e2e_windows (windows-2025, 22, npm, 3)	30s
e2e_windows (windows-2025, 22, esbuild, 2)	59s
e2e_windows (windows-2025, 22, esbuild, 5)	51s
e2e_windows (windows-2025, 22, esbuild, 1)	31s
e2e_windows (windows-2025, 22, esbuild, 4)	30s
e2e_windows (windows-2025, 22, esbuild, 3)	29s
e2e_windows (windows-2025, 22, esbuild, 0)	48s
test	0s
publish-snapshots	0s
Browser Compatibility Tests	0s
e2e-package-managers	0s
e2e	0s
e2e-snapshots	0s
	11m 9s

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